阅读说明：本技术 一种舱外维修用定长便携式安全带 (Fixed-length portable safety belt for extra-cabin maintenance ) 是由 王哲 郑鹏 张立伟 邱铁成 祁鹏 孙振业 张�诚 苏东 于 2021-09-16 设计创作，主要内容包括：本申请公开了一种舱外维修用定长便携式安全带,包括2个挂钩和1条挂钩连接带。所述挂钩包括挂钩本体、防误组件和锁定组件。自由状态下,锁定组件在弹簧作用下与挂钩本体形成封闭钩体,且在防误组件作用下完成自锁。若需打开锁定组件,需同时压下防误组件进行解锁。所述挂钩连接带包括连接带和挂钩连接扣,连接带两端分别连接一个挂钩连接扣,挂钩连接扣通过螺栓与挂钩尾部连接孔连接。(The application discloses portable safety belt of fixed length is used in extravehicular maintenance, including 2 couples and 1 couple connecting band. The couple includes the couple body, prevents mistake subassembly and locking Assembly. Under free state, the locking assembly and the hook body form a closed hook body under the action of the spring, and self-locking is completed under the action of the anti-misoperation assembly. If the locking assembly needs to be opened, the anti-misoperation assembly needs to be pressed down simultaneously to unlock. The hook connecting belt comprises a connecting belt and hook connecting buckles, the two ends of the connecting belt are respectively connected with the hook connecting buckles, and the hook connecting buckles are connected with the hook tail connecting holes through bolts.)

1. The utility model provides an extra-cabin maintenance is with portable safety belt of fixed length which characterized in that, includes 2 couple structures and 1 couple connecting band, 2 the couple structure is connected respectively couple connecting band both ends are used for hook equipment, maintenance tool and space suit or bulkhead handrail respectively, realize connecting between them.

2. The fixed-length portable safety belt for extra-cabin maintenance according to claim 1, wherein the hook connecting belt comprises a connecting belt and hook connecting buckles arranged at two ends of the connecting belt, the hook connecting buckles are connected with the hook structure, the hook structure comprises a hook body, an anti-misoperation component and a locking component, the locking component forms a closed hook body with the hook body under the action of a spring under the condition that external force is not applied, self-locking is completed under the action of the anti-misoperation component, and if the locking component needs to be opened, the locking component needs to be pressed to unlock while the anti-misoperation component is pressed down.

3. The fixed-length portable safety belt for extra-cabin maintenance according to claim 2, wherein the hook body is a hook body at one end, a mounting hole is formed at the other end, the hook body can be assembled with the hook connecting buckle through a bolt, and the hook body is further provided with a connecting hole for mounting the error preventing component and the locking component.

4. The fixed-length portable safety belt for extra-cabin maintenance according to claim 2, wherein a connecting hole is formed in one end of the opening of the hook body, the connecting hole is connected with one end of the locking assembly through a bolt, a groove and a protruding tongue are respectively formed in a contact portion of the other end of the opening of the hook body and the movable end of the locking assembly, the protruding tongue is located at the movable end of the locking assembly, the groove is located at one end of the hook body, the contact portion of the other end of the opening of the hook body and the movable end of the locking assembly is provided with the groove and the protruding tongue, and the protruding tongue and the groove are matched in a normal direction of a plane of opening and closing movement of the locking assembly to prevent the locking assembly from being pulled out in a lateral direction under the locking state.

5. The fixed-length portable safety belt for extra-vehicular maintenance according to claim 4, wherein in the hook opening state, when the movable end of the locking assembly contacts with the inner ring of the hook body, the movable end of the locking assembly is laterally protected and the opening range of the hook is increased, and in the hook body inner ring and the opening state, a fixed groove matched with the convex tongue is arranged at the position where the movable end of the locking assembly contacts.

6. The fixed-length portable safety belt for extra-cabin maintenance according to claim 2, wherein the locking assembly comprises a locking rod, a locking rod stop lever, a locking rod return spring and a locking rod mounting shaft, the locking rod and the locking rod return spring are connected through the locking rod mounting shaft and the hook body, the locking rod stop lever is fixedly connected with the locking rod, the locking rod stop lever faces towards the inner side of the hook, the locking rod return spring provides power for the locking rod to return, and an operating surface of the locking rod is machined with anti-skid threads.

7. The fixed-length portable safety belt for extra-cabin maintenance according to claim 6, wherein the anti-misoperation assembly comprises an anti-misoperation rod, an anti-misoperation rod return spring, a blocking handle and an anti-misoperation assembly connecting shaft, the anti-misoperation rod is fixedly connected with the blocking handle, the blocking handle faces to the inner side of the hook, the end of the blocking handle is in contact with the end of the locking rod blocking rod under the condition that no external force is applied, the locking rod blocking rod moving inwards, when the anti-misoperation rod is pressed down, the blocking handle rotates to no longer block the locking rod blocking rod, the locking rod is pressed at the moment, the hook can be opened, the anti-misoperation rod return spring provides power for resetting of the anti-misoperation rod, and anti-skid threads are machined on the operating surface of the anti-misoperation rod.

Technical Field

The invention relates to the field of space station extravehicular maintenance, in particular to a fixed-length portable safety belt for extravehicular maintenance.

Background

In recent years, China is accelerating the construction of space stations, and since the on-track operation time of the space stations is required to be as long as 15 years, and part of extravehicular equipment can be out of order during the on-track operation time, the on-track maintenance and replacement of the extravehicular equipment are required. The fixed-length portable safety belt is one of a series of space station extravehicular maintenance tools, and is mainly used for preventing the extravehicular operation position equipment and the maintenance tools from floating, and realizing the connection between the extravehicular equipment/the maintenance tools and the aerospace suit/bulkhead handrails. The fixed-length portable safety belt for space station extravehicular maintenance needs to meet the requirements of a space suit on the gripping size and the operating force of a spaceman, can be used in an extravehicular vacuum and a temperature range of-100 ℃ to +100 ℃, bears more than 4690N, has a self-locking function, prevents a hook from being opened by misoperation, and meets the requirements of a bulkhead handrail and an equipment handrail hook.

Disclosure of Invention

In view of the fact that ground hook products cannot meet the requirement for space station on-track maintenance, the fixed-length portable safety belt for space station extra-cabin maintenance is expected to be provided, and the anti-floating of equipment and maintenance tools at extra-cabin operation positions is completed.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a fixed-length portable safety belt for extravehicular maintenance, which is characterized by comprising 2 hook structures and 1 hook connecting belt, wherein the 2 hook structures are respectively connected to two ends of the hook connecting belt and are respectively used for hooking extravehicular equipment, maintenance tools and spacesuit or bulkhead handrails to realize connection of the extravehicular equipment, the maintenance tools and the spacesuit or bulkhead handrails.

Further, the couple connecting band includes the connecting band and sets up the couple connector link at the connecting band both ends, the couple connector link with couple structural connection, the couple structure includes the couple body, prevents mistake subassembly and locking Assembly under the condition of not applying external force, locking Assembly forms closed coupler body with the couple body under the spring action, and is in prevent accomplishing the auto-lock under the mistake subassembly effect, if need open locking Assembly, need press locking Assembly and carry out the unblock when pressing down and preventing mistake subassembly.

Further, couple body one end is the hook body, and the other end has the mounting hole, can with the couple connector link passes through the bolt assembly, the couple body still is provided with the connecting hole that is used for the installation to prevent mistake subassembly and locking Assembly.

Furthermore, one end of the opening of the hook body is provided with a connecting hole, the connecting hole is connected with one end of the locking assembly through a bolt, the other end of the opening of the hook body and the contact part of the movable end of the locking assembly are respectively provided with a groove and a convex tongue, the convex tongue is positioned at the movable end of the locking assembly, the groove is positioned at one end of the hook body contacted with the convex tongue, and the convex tongue and the groove are matched in the normal direction of the plane of the opening and closing movement of the locking assembly to prevent the locking assembly from being disengaged under the lateral stress in the locking state.

Furthermore, when the hook is in an opening state, namely the movable end of the locking assembly is in contact with the inner ring of the hook body, the hook is laterally protected, the opening range of the hook is increased, and a fixing groove matched with the convex tongue is arranged at the contact position of the inner ring of the hook body and the movable end of the locking assembly in the opening state.

Further, the locking assembly comprises a locking rod, a locking rod stop lever, a locking rod return spring and a locking rod mounting shaft, the locking rod and the locking rod return spring are connected with the hook body through the locking rod mounting shaft, the locking rod stop lever is fixedly connected with the locking rod, the locking rod stop lever faces the inner side of the hook, the locking rod return spring provides power for the locking rod to return, and anti-skid threads are machined on the operating surface of the locking rod.

Further, prevent mistake subassembly including prevent mistake depression bar, prevent depression bar reset spring, fender handle, prevent mistake subassembly connecting axle, prevent mistake depression bar with keep off handle fixed connection, keep off the handle towards the couple inboard, under the condition that does not have external force to apply, its tip with locking lever shelves pole tip contact, block locking lever shelves pole moves inwards, works as when prevent mistake depression bar is pressed down, keep off the handle and rotate, no longer block locking lever shelves pole, press this moment the locking lever can open the couple, prevent mistake depression bar reset spring does prevent mistake depression bar and reset and provide power, the operating surface processing of preventing mistake depression bar has anti-skidding line.

Compared with the prior art, the invention has the beneficial effects that:

according to the technical scheme that this application embodiment provided a space station is portable safety belt of fixed length for extra-cabin maintenance, including 2 couples and 1 couple connecting band, 2 couples are connected by the couple connecting band, are used for hook equipment of going out of the cabin/maintenance tool and space suit/bulkhead handrail respectively, realize connecting between them.The size of the opening is not less than 37mm after unlocking, and the hooking requirements of the cabin outlet equipment, the maintenance tool, the space suit and the cabin wall handrail are met. The couple is preventing that the auto-lock is accomplished to the subassembly effect down, if need open the locking subassembly, need press down simultaneously and prevent that the subassembly is prevented the unblock, prevents that the maloperation from opening the couple. The overall size and the operating force of the hook meet the requirement of astronauts on the ergonomics.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of a fixed-length portable safety belt for extravehicular maintenance according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a hook according to an embodiment of the present invention;

FIG. 3 is a schematic view of the upper groove of the hook body according to an embodiment of the present invention;

FIG. 4 is a schematic view of a groove in a closure portion of a hook according to an embodiment of the present invention;

FIG. 5 is a schematic half-sectional view of a hook self-locking structure according to an embodiment of the present invention;

FIG. 6 is a schematic view of a hook fastening tape in accordance with an embodiment of the present invention.

In the figure: 1-hook, 11-hook body, 111-hook body upper groove, 112-hook closing part fixing groove, 12-stop handle, 14-anti-depression bar, 15-locking bar mounting shaft, 16-locking bar, 161-locking bar stop lever, 2-hook connecting belt, 21-hook connecting buckle and 22-connecting belt.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As mentioned in the background, in recent years, our country is accelerating the construction of space stations, during which time some of the extra-cabin equipment may fail, requiring on-track maintenance and replacement, since space stations require on-track operation times of up to 15 years. The fixed-length portable safety belt is one of a series of space station extravehicular maintenance tools, and is mainly used for preventing the extravehicular operation position equipment and the maintenance tools from floating, and realizing the connection between the extravehicular equipment/the maintenance tools and the aerospace suit/bulkhead handrails. The fixed-length portable safety belt for space station extravehicular maintenance needs to meet the requirements of a space suit on the gripping size and the operating force of a spaceman, can be used in an extravehicular vacuum and a temperature range of-100 ℃ to +100 ℃, bears more than 4690N, has a self-locking function, prevents a hook from being opened by misoperation, and meets the requirements of a bulkhead handrail and an equipment handrail hook. The ground hook product can not meet the space on-rail maintenance and use requirements.

Therefore, how to meet the space on-rail maintenance use requirement is the direction of the invention of the application. The basic idea of the invention is to hook the cabin equipment/maintenance tool and the aerospace suit/bulkhead handrail respectively through 2 hook structures connected by a hook connecting belt to realize the connection of the cabin equipment/maintenance tool and the aerospace suit/bulkhead handrail. And the using requirement outside the cabin of the astronaut is met by optimizing the structural size, the operating force and the self-locking design of the framework.

As shown in fig. 1 to 6, which illustrate the fixed length portable harness for outside service of a space station according to the present invention.

As shown in fig. 1, the fixed-length portable safety belt for maintenance outside a space station cabin comprises 2 hook structures 1 and 1 hook connecting belt 2, wherein the hook structures 1 are respectively connected to two ends of the hook connecting belt 2 and are respectively used for hooking out-cabin equipment/maintenance tools and spacesuit/cabin wall handrails to realize connection of the two.

As shown in fig. 2 to 4, in the present embodiment, the hook structure 1 includes a hook body 11, a mistake preventing assembly and a locking assembly. In a free state, a locking rod 15 in the locking assembly forms a closed hook body with the hook body 11 under the action of a spring,and accomplish the auto-lock under preventing the effect of mistake subassembly, if need open the locking subassembly, need press the locking subassembly and carry out the unblock when pressing down and prevent mistake subassembly, the opening size is no less than 37mm after the unblock, unblock power 5 ~ 10N.

Wherein, couple body 11 one end is the coupler body, and the other end has the mounting hole, can pass through bolt assembly with couple connector link 21 of connecting band subassembly 2. The hook body 11 is simultaneously processed with connecting holes for preventing the error assembly and the locking assembly, and is also assembled through bolts.

Wherein, one end of the opening of the hook body 11 is provided with a connecting hole and is connected with one end of the locking rod 16 through a bolt, the contact part of the other end of the opening of the hook body 11 and the movable end of the locking rod 16 is respectively provided with a groove and a convex tongue, the convex tongue is positioned at the movable end of the locking rod 16, the groove is positioned at one end of the hook body 11 contacted with the convex tongue, and the convex tongue and the groove are matched in the normal direction of the plane of the opening and closing movement of the locking rod 16 to prevent the locking component from being pulled out by lateral stress in the locking state.

In order to protect the hook laterally when the hook is in an open state, i.e. when the movable end of the locking rod 16 contacts the inner ring of the hook body 11, and to increase the opening range of the hook, an upper groove 111 of the hook body is provided at the contact position of the inner ring of the hook body 11 and the movable end of the locking rod 16 in the open state, which is engaged with the tongue.

The locking assembly comprises a locking rod 16, a locking rod lever 161, a locking rod return spring and a locking rod mounting shaft, the locking rod 16 and the locking rod return spring are connected with the hook body 11 through the locking rod mounting shaft, the locking rod lever 161 is fixedly connected with the locking rod 16, the locking rod lever 161 faces the inner side of the hook, the locking rod return spring provides power for the locking rod to return, and anti-skid threads are machined on the operating surface of the locking rod.

As shown in fig. 5, the blocking handle 12 is blocked with the locking lever blocking rod 161 through the stepped groove to complete self-locking, and at this time, the locking lever 16 cannot be opened, and the anti-misoperation rod 14 needs to be pressed down to rotate the blocking handle 12 clockwise by a certain angle, so that the stepped groove of the rotation blocking handle 12 is separated from the protruding blocking rod 161 of the locking lever 16, and the locking lever 16 can be rotated to open.

As shown in fig. 6, in this embodiment, the hook connecting belt 2 includes a connecting belt 22 and hook connecting buckles 21, the length of the connecting belt 22 is no less than 1.2m, two ends of the connecting belt are respectively connected with one hook connecting buckle 21, and the hook connecting buckles 21 are connected with the tail connecting holes of the hooks 1 through bolts.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.